Home / 105,251.40-145,223.28-62,802

Finding the Fourth Proportional to 105,251.40, 145,223.28 and 62,802

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Solution

The fourth proportional to 105,251.40, 145,223.28 and 62,802 is: 86,652.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,251.40 : 145,223.28 = 62,802 : x
  2. Step 2: Convert to fraction form
    105,251.40/145,223.28 = 62,802/x
  3. Step 3: Cross multiply
    105,251.40x = 145,223.28 × 62,802
  4. Step 4: Simplify right side
    105,251.40x = 9,120,312,430.56
  5. Step 5: Solve for x
    x = 9,120,312,430.56/105,251.40
  6. Step 6: Final answer
    x = 86,652.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.